[3.9] wpa_supplicant: EAP-pwd message reassembly issue with unexpected fragment (CVE-2019-11555)
The EAP-pwd implementation in hostapd (EAP server) before 2.8 and wpa_supplicant (EAP peer) before 2.8 does not validate fragmentation reassembly state properly for a case where an unexpected fragment could be received. This could result in process termination due to a NULL pointer dereference (denial of service). This affects eap_server/eap_server_pwd.c and eap_peer/eap_pwd.c.
References:
https://www.openwall.com/lists/oss-security/2019/04/26/1
https://w1.fi/security/2019-5/
https://nvd.nist.gov/vuln/detail/CVE-2019-11555
(from redmine: issue id 10415, created on 2019-05-07, closed on 2019-06-20)
- Relations:
- parent #10413 (closed)
- Changesets:
- Revision 5e5822d5 on 2019-06-05T07:24:47Z:
main/wpa_supplicant: security fix (CVE-2019-11555)
Fixes #10415